org.jitsi.impl.neomedia.jmfext.media.protocol.ivffile

Class DataSource

java.lang.Object

javax.media.protocol.DataSource

javax.media.protocol.PullBufferDataSource

org.jitsi.impl.neomedia.jmfext.media.protocol.AbstractPullBufferCaptureDevice

org.jitsi.impl.neomedia.jmfext.media.protocol.AbstractVideoPullBufferCaptureDevice

org.jitsi.impl.neomedia.jmfext.media.protocol.ivffile.DataSource

All Implemented Interfaces:

javax.media.Controls, javax.media.Duration, javax.media.protocol.CaptureDevice

public class DataSource
extends AbstractVideoPullBufferCaptureDevice

Implements CaptureDevice and DataSource for the purposes of ivf (vp8 raw file, extracted from webm) file streaming.

Author:

Thomas Kuntz

Field Summary

Fields inherited from interface javax.media.Duration

DURATION_UNBOUNDED, DURATION_UNKNOWN

Constructor Summary

Constructors

Constructor and Description
DataSource()

Method Summary

Modifier and Type	Method and Description
protected IVFStream	createStream(int streamIndex, javax.media.control.FormatControl formatControl) Creates a new PullBufferStream which is to be at a specific zero-based index in the list of streams of this PullBufferDataSource.
void	doConnect() doConnect allows us to initialize the DataSource with information that we couldn't have in the constructor, like the MediaLocator that give us the path of the ivf file which give us information on the format
protected javax.media.Format[]	getSupportedFormats(int streamIndex) Gets the Formats which are to be reported by a FormatControl as supported formats for a PullBufferStream at a specific zero-based index in the list of streams of this PullBufferDataSource.

Methods inherited from class org.jitsi.impl.neomedia.jmfext.media.protocol.AbstractVideoPullBufferCaptureDevice

createFrameRateControl

Methods inherited from class org.jitsi.impl.neomedia.jmfext.media.protocol.AbstractPullBufferCaptureDevice

connect, disconnect, doDisconnect, doStart, doStop, getCaptureDeviceInfo, getContentType, getControl, getControls, getDuration, getFormat, getFormatControls, getStreams, getStreamSyncRoot, setCaptureDeviceInfo, setFormat, start, stop, streams

Methods inherited from class javax.media.protocol.DataSource

getLocator, initCheck, setLocator

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DataSource

public DataSource()

Method Detail

doConnect

public void doConnect()
               throws IOException

doConnect allows us to initialize the DataSource with information that we couldn't have in the constructor, like the MediaLocator that give us the path of the ivf file which give us information on the format

Overrides:

doConnect in class AbstractPullBufferCaptureDevice

Throws:

IOException - if anything goes wrong while opening the connection to the media source specified by the MediaLocator of this DataSource

createStream

protected IVFStream createStream(int streamIndex,
                                 javax.media.control.FormatControl formatControl)

Creates a new PullBufferStream which is to be at a specific zero-based index in the list of streams of this PullBufferDataSource. The Format-related information of the new instance is to be abstracted by a specific FormatControl. Implements AbstractPushBufferCaptureDevice.createStream(int, FormatControl).

Specified by:

createStream in class AbstractPullBufferCaptureDevice

Parameters:

streamIndex - the zero-based index of the PullBufferStream in the list of streams of this PullBufferDataSource

formatControl - the FormatControl which is to abstract the Format-related information of the new instance

Returns:

a new PullBufferStream which is to be at the specified streamIndex in the list of streams of this PullBufferDataSource and which has its Format-related information abstracted by the specified formatControl

getSupportedFormats

protected javax.media.Format[] getSupportedFormats(int streamIndex)

Gets the Formats which are to be reported by a FormatControl as supported formats for a PullBufferStream at a specific zero-based index in the list of streams of this PullBufferDataSource. Overrides the super implementation in order to return the list of Formats hardcoded as supported in IVFCaptureDevice because the super looks them up by CaptureDeviceInfo and it doesn't have some information (like the framerate etc.).

Overrides:

getSupportedFormats in class AbstractPullBufferCaptureDevice

Parameters:

streamIndex - the zero-based index of the PullBufferStream for which the specified FormatControl is to report the list of supported Formats

Returns:

an array of Formats to be reported by a FormatControl as the supported formats for the PullBufferStream at the specified streamIndex in the list of streams of this PullBufferDataSource